.png
{
  display: block;
  margin-top: 150px;
  margin-left: auto;
  margin-right: auto;
  padding-bottom: 50px;
}

.custom-file
{
	display: block;
	margin-left: auto;
	margin-right: auto;
	width:450px; 
}	

.form-group
{
	display: block;
	margin-left: auto;
	margin-right: auto;
	width:200px;
}

input[type="file"] { 
  z-index: -1;
  position: absolute;
  opacity: 0;
}

input:focus + label {
  outline: 2px solid;
}